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Tunneling or tunnelling may refer to:

  • Digging tunnels (the literal meaning)
  • Quantum tunneling, the quantum-mechanical effect where a particle crosses through a classically forbidden potential energy barrier
  • Tunneling (fraud), a fraud committed by a company's own management or by major shareholders
  • Tunneling protocol, transmitting one computer network protocol that is encapsulated inside another network protocol

See also[edit]